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Communication Dans Un Congrès Année : 2009

Light propagation in a periodic ensemble of ultracold atoms

Mauro Antezza
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Résumé

We address the general problem of the excitation spectrum for light coupled to scatterers having quantum fluctuating positions around the sites of a periodic lattice. In addition to providing an imaginary part to the spectrum, we show that these quantum fluctuations affect the real part of the spectrum, in a way that we determine analytically. Our predictions may be observed with ultracold atoms in an optical lattice, on a J 1⁄4 0 ! J0 1⁄4 1 narrow atomic transition. As a side result, we resolve a controversy for the occurrence of a spectral gap in a fcc lattice.
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Dates et versions

hal-01910115 , version 1 (31-10-2018)

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  • HAL Id : hal-01910115 , version 1

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Mauro Antezza. Light propagation in a periodic ensemble of ultracold atoms. CEWQO2009, May 2009, Turku, Finland. ⟨hal-01910115⟩
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